sproull



Reissued June 13, 1939 UNITED STATES PATENT OFFICEl Original No.2,048,975, dated July 28, 1936, Serial No. 66,010, February 27, 1936.Reissue No.

20,755, dated June 7,

December 15, 1936.

1938, Serial No. 117,466, This application for reissue July 21, 1938,Serial No. 220,598

6 Claims.

This invention relates to a valve.

An object of the invention is to provide a valve of the characterdescribed having a controlling assembly whereby the Valve may be openedand closed and which has a substantially continuous conduit therethroughwhen the valve is in open position without internal pockets or recessesfor the collection of detritus.

Another object of the invention is to provide a valve mechanismcomprising a casing having an inside seat and having a core in thecasing with a sleeve fitted into the casing around the core and having athreaded connection whereby upon turning movement of the sleeve saidsleeve will move endwise, the casing and core having a flow waytherethrough and the sleeve being provided with openings movable intoand out o1" registration with the flow way upon turning movement of thesleeve, said parts being eiiective upon turning movement oi the sleevein one direction to cause the sleeve to seat tightly against the casingand upon turning movement in the other direction to cause the sleeve torelax from its tightly seated position against the casing with means forturning the sleeve.

Another object of the invention is to provide a valve mechanismincluding a casing having a conduit and having a fixed core in thecasing provided v/ith a conduit which is aligned with the conduitthrough the casing with an expansible sleeve about the core havingopenings and movable into one position to align the openings with saidconduits and into another position to move the sleeve openings out ofsuch alignment tociosc said conduits, said core and sleeve havingco-acting parts effective to expand the sleeve to form a fluid-tightjoint with the casing when the sleeve reaches the limit of its movementinto either oi said positions.

A further object of the invention is to provide a valve of the characterdescribed having novel means for operating the sleeve into open orclosed position.

It is another object of the invention to provide a valve having a casingand a controlling assembly therein mounted to protect the casing againstthe abrading influence of gritty fluid being conducted under pressurethrough the valve.

With the above and other objects in View the invention hasparticularrelation to certain novel features of construction, operation andarrangement of parts, an example of which is given in this specificationand illustrated in the accompanying drawing wherein:

Figure 1 shows a sectional View of the valve.

Figure 2 shows a side elevation.

Figure 3 shows a cross-sectional View oi the operating stem.

Figure 4 shows an end view' or" the valve sleeve.

Figure 5 shows a longitudinal, sectional view thereof, and

Figure 6 shows a cross-sectional view of the valve taken on the line 6 6of Figure 2.

Referring now more particularly to the drawing wherein lil-:e numeralsof reference designate similar parts in each of the gures, the numeral Idesignates a vaive casing having the conduits E ltfnerethrougli which isin alignment with the fluid-conducting pipes 3, 3 which are connectedinto the valve casing.

In a preferred embodiment of the invention there is aiixed core l in thecasing having a conduit therethrough which is in alignment with theconduits 2. One end of the core is extended through the casing andformed into a protecting housing E. This housing may be welded orotherwise permanently secured'to the valve casing I so as to hold thecore 4 stationary, The core t is externally threaded and is spaced `fromthe casing all the way around and threaded onto the core, and fittedclosely in the casing there is the sleeve 'l which may be split from endto end at one side, as at 8, if desired, to permit its expansion andcontraction, and on the other side is provided with the external,longitudinal groove 9. The sleeve has the` oppositely disposed openingsi0, IG substantially equal in diameter to the vdiameter of the conduits2, 5. Said sleeve is turnable to one position to align the openings Iiiwith said conduits to permit the ow oi fluid through the valve and isturnable into another position to carry'thefopenings I@ out oi alignmentwith said'ccnduits to prevent lsuch flow.

There are the anti-friction rings I i between the valve casing, and oneend of the sleeve andthe other end of the sleeve is formed with notchesI2. There isan operating stern I3 whose inner end is provided with anexternal, annular flange I4 having the radial lugs I5 which work in thenotches I2.

There is a bonnet I i5 tted over and enclosing the stern I 3, andbetween the inner end oi the bonnet and the flange id' are theanti-friction bearing rings Il. The inner end of the bonnet I 6 isreduced and externally threaded and has an annular gland I8 screwedthereon whose inner face is tapered and ts into a correspondinglytapered seat I9 of the valve casing. The gland IB is of a greateroutside diameter than that of the bonnet I 6 and a flange nut 20 isfitted around the bonnet and screwed onto the valve casing and has aninternal, annular flange 2| Which engages the gland I8 to maintain thebonnet assembled with the valve casing. The outer end of the stem I3 hasthe external screw threads 22, and mounted in the outer end of thebonnet there is an operating stem 23 Whose outer end carries thehandwheel 24 and whose inner end is formed with a screw-gear in meshwith the gear 22@ The stem 23 has suitable bearings in the bonnet onopposite sides of the gear 25 and is also packed with a suitablestufiing box 26. By turning'the stem 23, the stem I3 will also beturned, imparting rotation also to the sleeve 1. As said sleeve isturned, it will also be moved longitudinally relative to the core 4 onaccount of its threaded connection therewith. When the sleeve is turneda quarter turn in one direction, it will carry the openings IB intoalignment with the conduit 2 and is arranged to be stopped in saidposition by its thrust against the friction rings II. A further attemptto turn the sleeve 'I will cause the intermeshing threads of the sleeveto ride up on the co-rresponding threads of the core 4, as illustratedin Figure l, causing a uniform expansion of the sleeve and causing it tofit tightly in the valve casing to prevent leakage. When the stem 23 isturned in the other direction, the stem I3 and sleeve I will becorrespondingly turned in said last-mentioned direction carrying theopenings IB out of registration with the conduit 2 and the co-action ofthe threads will move the sleeve 'l longitudinally against the flangeI4, and a further attempt to turn said stem will cause the threads ofthe sleeve to ride up on the threads of the core 4 in the reverseposition to that indicated in Figure 1 causing a uniform expansion ofthe sleeve, and thus causing the sleeve to fit tightly in the valvecasing to prevent leakage.

It will be noted that the sleeve 1 will pro-tect the parts of the valvecasing adjacent the conduit 2 and prevent said casing from being cut outby gritty fluid flowing therethrough under high v pressure. The sleeve,in intermediate position will contract and may, therefore, be easilyturned.

A grease gun connection 21 may be located in the housing 6 and screwedinto the valve casing I. Leading from this connection through the core 4therey is a channel 28 which terminates in an annular channel 29 aroundthe core'. A lubricant may be forced through the channels 28 and 29 andwill nd its Way between the intermeshing threads above referred to andwill also pass along the groove 9 and the slot 8 located at the openside of the sleeve 1, and will finally find its Way to all the internalWorking parts so as to keep the same thoroughly lubricated. A heavygrease or oil may be used so as to also prevent leakage of the fluidbeing conducted through the valve.

The drawing and description disclose What is now considered to be apreferred form of the invention by way of illustration only, While thebroad principle of the invention will be defined by the appended claims.

What I claim is:

1. A valve comprising a casing having a flow conduit therethrough, acore fixed in the casing having a conduit therethrough, said conduitsbeing in alignment, an expansible sleeve on the core having openings,means for turning the sleeve to move the openings into and out ofregistration with the conduits and co-acting means on the core andsleeve effective to expand the sleeve, when it reaches the limit of itsmovement in either direction.

2. A valve comprising a casing, a core fixed therein, an expansiblesleeve fitted into the casing and surrounding the core, the casing andcore having a flow way and the sleeve having openings arranged to moveinto and out of alignment with the flow way as the sleeve iscorrespondingly turned, said core and sleeve having co-acting slopingfaces effective to expand the sleeve when the sleeve reaches the limitof its movement in either direction.

3. A valve comprising a casing, an externally.

threaded core xed therein, an expansible sleeve fitted into the casingand threaded onto the core., said casing and core having a flow Waytherethrough, the sleeve being provided with openings and being turnableto move the openings into and out of registration with the flow Way.

4. A valve comprising a casing, an externally threaded core fixedtherein, a sleeve fitted into the casing and threaded onto the core,said casing and core having a flow way therethrough, the sleeve beingprovided with openings and being turnable to move the openings into andout of registration with the flow Way, a stem turnable in the casing andconnected with the sleeve and having an abutment thereon at one end ofthe sleeve, anti-friction means in. the casing at the other end of thesleeve, said abutment and anti-friction means forming stops to limit theendwise movement of the sleeve in each direction.

5. A valve comprising a casing, a core fixed therein, a sleeve fittedinto the casing around the core and having a threaded connection wherebyupon turning movement of the sleeve, said sleeve will move endwise, saidcasing and core having conduits therethrough in constant transversealignment forming a flow Way therethrough, the Sleeve being providedWith openings and being turnableto moveV the openings into and out ofregistration with the flow way, means for turning the sleeve, the insidewall of the casing forming a seat said parts being effective, uponturning movement of the sleeve in one direction, to cause the sleeve toseat tightly against the seat and upon turning movement in the otherdirection to cause the sleeve to relax from its tightly seated positionagainst the seat.

6. A valve assembly comprising a casing having an inside, cylindricalseat, a core fixed Within the casing and spaced a uniform distance, allthe way around, from said seat, said casing and core having a transverseflow Way extending entirely therethrough, a sleeve-like valve fittedinto the casing around the core and having a threaded connection withthe core whereby upon turning movement of the valve said valve will moveend- Wise, the valve being provided with openings movable into and outof registration with the ow way upon appropriate tuning movements of thevalves, means for turning the valve, the threaded rconnection betweenthe valve and core being arranged to cause the valve to seat tightlyagainst the seat when the valve is turned in one direction and to relaxfrom its tightly seated position when turned in the other direction.

CHARLES W. SPROULL.

